Arriving Hanoi on a Sunday without a visa ( Visa exempted )- will it cause any problems and delay at airport ?

I have a British passport and have booked a 15 days holiday to see Hanoi in October 2019. My Vietnam Airline flight is on a Saturday from Heathrow London to Ho Chi Minh city and then another flight from there to Hanoi, reaching Hanoi on a Sunday. I am a bit concerned because I am arriving Hanoi on a Sunday with out a Visa. Will it cause any problem and delay because it is a Sunday ?